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HD 15558 (HIP 11832) is a massive O-type multiple star system in Cassiopeia and is specifically in our galaxy's Heart Nebula in open cluster IC 1805. The primary is a very massive star with 152 M☉ and 660,000 L☉.
, HD 15558 är en multipelstjärna, belägen i … HD 15558 är en multipelstjärna, belägen i den norra delen av stjärnbilden Cassiopeja, specifikt i Hjärtnebulosan i Vintergatan i den öppna stjärnhopen IC 1805. Den har en kombinerad skenbar magnitud av ca 7,87 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 0,97 mas, beräknas den befinna sig på ett avstånd på ca 7 500 ljusår (ca 2 300 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -45 km/s.iocentrisk radialhastighet på ca -45 km/s.
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0.7
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7.87
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+0.43
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An H-alpha image of the Heart Nebula. HD 15558 is located at the centre of the cluster, circled.
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http://dbpedia.org/resource/O-type_star +
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secondary
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+0.18
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+0.18
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~660,000
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0.0662
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0.5764
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120
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1.2
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3.81888E7
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−0.849
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−0.478
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+0.40
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5.6
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39500
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−0.55
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+0.38
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| rdfs:comment |
HD 15558 (HIP 11832) is a massive O-type multiple star system in Cassiopeia and is specifically in our galaxy's Heart Nebula in open cluster IC 1805. The primary is a very massive star with 152 M☉ and 660,000 L☉.
, HD 15558 är en multipelstjärna, belägen i … HD 15558 är en multipelstjärna, belägen i den norra delen av stjärnbilden Cassiopeja, specifikt i Hjärtnebulosan i Vintergatan i den öppna stjärnhopen IC 1805. Den har en kombinerad skenbar magnitud av ca 7,87 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 0,97 mas, beräknas den befinna sig på ett avstånd på ca 7 500 ljusår (ca 2 300 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -45 km/s.iocentrisk radialhastighet på ca -45 km/s.
|
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HD 15558
|
